package com.tydic.mapboxtest;

import android.animation.ValueAnimator;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PointF;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;

import com.mapbox.mapboxsdk.Mapbox;
import com.mapbox.mapboxsdk.geometry.LatLng;
import com.mapbox.mapboxsdk.maps.MapView;
import com.mapbox.mapboxsdk.maps.MapboxMap;
import com.mapbox.mapboxsdk.maps.OnMapReadyCallback;
import com.mapbox.mapboxsdk.style.layers.PropertyFactory;
import com.mapbox.mapboxsdk.style.layers.SymbolLayer;
import com.mapbox.mapboxsdk.style.sources.GeoJsonSource;
import com.mapbox.mapboxsdk.style.sources.Source;
import com.mapbox.services.commons.geojson.Feature;
import com.mapbox.services.commons.geojson.FeatureCollection;
import com.mapbox.services.commons.geojson.Point;
import com.mapbox.services.commons.models.Position;

import java.util.ArrayList;
import java.util.List;

public class SymbolLayerActivity extends AppCompatActivity implements OnMapReadyCallback,
        MapboxMap.OnMapClickListener {

    private MapView mapView;
    private MapboxMap mapboxMap;
    private boolean markerSelected = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Mapbox access token is configured here. This needs to be called either in your
      // application
        // object or in the same activity which contains the mapview.
        Mapbox.getInstance(this, getString(R.string.access_token));

        // This contains the MapView in XML and needs to be called after the account manager
        setContentView(R.layout.activity_symbol_layer);

        mapView = (MapView) findViewById(R.id.mapView);
        mapView.onCreate(savedInstanceState);
        mapView.getMapAsync(this);
    }

    @Override
    public void onMapReady(MapboxMap mapboxMap) {

        this.mapboxMap = mapboxMap;

        List<Feature> markerCoordinates = new ArrayList<>();
        markerCoordinates.add(Feature.fromGeometry(
                Point.fromCoordinates(Position.fromCoordinates(-71.065634, 42.354950))) // Boston
                // Common Park
        );
        markerCoordinates.add(Feature.fromGeometry(
                Point.fromCoordinates(Position.fromCoordinates(-71.097293, 42.346645))) // Fenway
                // Park
        );
        markerCoordinates.add(Feature.fromGeometry(
                Point.fromCoordinates(Position.fromCoordinates(-71.053694, 42.363725))) // The
                // Paul Revere House
        );
        FeatureCollection featureCollection = FeatureCollection.fromFeatures(markerCoordinates);

        Source geoJsonSource = new GeoJsonSource("marker-source", featureCollection);
        mapboxMap.addSource(geoJsonSource);

        Bitmap icon = BitmapFactory.decodeResource(SymbolLayerActivity.this.getResources(), R
                .mipmap.blue_marker_view);

        // Add the marker image to map
        mapboxMap.addImage("my-marker-image", icon);

        SymbolLayer markers = new SymbolLayer("marker-layer", "marker-source")
                .withProperties(PropertyFactory.iconImage("my-marker-image"), PropertyFactory
                        .textField("看看不说话"));
        mapboxMap.addLayer(markers);

        // Add the selected marker source and layer
        FeatureCollection emptySource = FeatureCollection.fromFeatures(new Feature[]{});
        Source selectedMarkerSource = new GeoJsonSource("selected-marker", emptySource);
        mapboxMap.addSource(selectedMarkerSource);

        SymbolLayer selectedMarker = new SymbolLayer("selected-marker-layer", "selected-marker")
                .withProperties(PropertyFactory.iconImage("my-marker-image"));
        mapboxMap.addLayer(selectedMarker);

        mapboxMap.setOnMapClickListener(this);
    }

    @Override
    public void onMapClick(@NonNull LatLng point) {

        final SymbolLayer marker = (SymbolLayer) mapboxMap.getLayer("selected-marker-layer");

        final PointF pixel = mapboxMap.getProjection().toScreenLocation(point);
        List<Feature> features = mapboxMap.queryRenderedFeatures(pixel, "marker-layer");
        List<Feature> selectedFeature = mapboxMap.queryRenderedFeatures(pixel,
                "selected-marker-layer");

        if (selectedFeature.size() > 0 && markerSelected) {
            return;
        }

        if (features.isEmpty()) {
            if (markerSelected) {
                deselectMarker(marker);
            }
            return;
        }

        FeatureCollection featureCollection = FeatureCollection.fromFeatures(
                new Feature[]{Feature.fromGeometry(features.get(0).getGeometry())});
        GeoJsonSource source = mapboxMap.getSourceAs("selected-marker");
        if (source != null) {
            source.setGeoJson(featureCollection);
        }

        if (markerSelected) {
            deselectMarker(marker);
        }
        if (features.size() > 0) {
            selectMarker(marker);
        }
    }

    private void selectMarker(final SymbolLayer marker) {
        ValueAnimator markerAnimator = new ValueAnimator();
        markerAnimator.setObjectValues(1f, 2f);
        markerAnimator.setDuration(300);
        markerAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

            @Override
            public void onAnimationUpdate(ValueAnimator animator) {
                marker.setProperties(
                        PropertyFactory.iconSize((float) animator.getAnimatedValue())
                );
            }
        });
        markerAnimator.start();
        markerSelected = true;
    }

    private void deselectMarker(final SymbolLayer marker) {
        ValueAnimator markerAnimator = new ValueAnimator();
        markerAnimator.setObjectValues(2f, 1f);
        markerAnimator.setDuration(300);
        markerAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {

            @Override
            public void onAnimationUpdate(ValueAnimator animator) {
                marker.setProperties(
                        PropertyFactory.iconSize((float) animator.getAnimatedValue())
                );
            }
        });
        markerAnimator.start();
        markerSelected = false;
    }

    @Override
    public void onResume() {
        super.onResume();
        mapView.onResume();
    }

    @Override
    protected void onStart() {
        super.onStart();
        mapView.onStart();
    }

    @Override
    protected void onStop() {
        super.onStop();
        mapView.onStop();
    }

    @Override
    public void onPause() {
        super.onPause();
        mapView.onPause();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapView.onLowMemory();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mapView.onDestroy();
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mapView.onSaveInstanceState(outState);
    }
}